EP3893358A1 - Prise - Google Patents

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Publication number
EP3893358A1
EP3893358A1 EP19891737.9A EP19891737A EP3893358A1 EP 3893358 A1 EP3893358 A1 EP 3893358A1 EP 19891737 A EP19891737 A EP 19891737A EP 3893358 A1 EP3893358 A1 EP 3893358A1
Authority
EP
European Patent Office
Prior art keywords
charging
socket
converter
expected
current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19891737.9A
Other languages
German (de)
English (en)
Other versions
EP3893358A4 (fr
Inventor
Zhuomin DENG
Guoqiang Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Australia Pty Ltd
Original Assignee
Schneider Electric Australia Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric Australia Pty Ltd filed Critical Schneider Electric Australia Pty Ltd
Publication of EP3893358A1 publication Critical patent/EP3893358A1/fr
Publication of EP3893358A4 publication Critical patent/EP3893358A4/fr
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage

Definitions

  • the embodiments of the present disclosure relate to the field of electrical equipment, and in particular to a socket.
  • the embodiments of the present disclosure provide a socket.
  • the socket comprises: a charging port; an AC/DC converter; a charging controller, which is configured to, in response to the charging port being connected to a device to be charged, determine an expected charging voltage and an expected charging current supported by the device to be charged; and a power supply controller, which is coupled to the charging controller and is configured to adjust an output voltage and output current of the AC/DC converter based on the determined expected charging voltage and expected charging current.
  • the actual output voltage and actual output current of the socket can be adjusted based on the expected charging voltage and expected charging current supported by the device to be charged.
  • the limited charging ports in the socket can be used to provide the best charging solutions for devices with different specifications.
  • the charging controller comprises: an identification unit, which is configured to identify a charging protocol supported by the device to be charged; a storage unit, which is configured to store expected charging voltages and expected charging currents specified by a plurality of charging protocols; and an ascertaining unit, which is configured to acquire the corresponding expected charging voltage and expected charging current from the storage unit based on the charging protocol identified by the identification unit and send them to the power supply controller.
  • the charging controller further comprises: a monitoring unit, which is configured to, in response to the actual charging current exceeding the expected charging current and reaching a predetermined threshold, stop providing output voltage and output current to the device to be charged, and/or which is configured to, in respond to the expected charging current of the device to be charged exceeding the rated current of the AC/DC converter, limit the output current of the AC/DC converter to the rated current.
  • a monitoring unit which is configured to, in response to the actual charging current exceeding the expected charging current and reaching a predetermined threshold, stop providing output voltage and output current to the device to be charged, and/or which is configured to, in respond to the expected charging current of the device to be charged exceeding the rated current of the AC/DC converter, limit the output current of the AC/DC converter to the rated current.
  • the AC/DC converter comprises: a transformer with a primary side and a secondary side; a power switch, which is coupled to the primary side of the transformer and is configured to be turned on based on the expected charging voltage under the control of the power supply controller to adjust the output voltage; an input rectifier filter, which is coupled between the AC input and the primary side of the transformer; and an output rectifier filter, which is coupled between the secondary side of the transformer and the charging port.
  • the power supply controller comprises: a switch control unit, which is configured to turn on the power switch based on the expected charging voltage to adjust the output voltage; and a temperature sensing unit, which is configured to, in response to the temperature of the AC/DC converter exceeding a predetermined threshold, turn off the power switch by means of the switch control unit to stop providing output voltage and output current.
  • the AC/DC converter is connected to the power supply controller and/or the charging controller to provide working voltage.
  • the socket further comprises a socket port, which is configured to provide AC output voltage.
  • the socket is designed as a panel mounted socket.
  • the charging port is a USB port.
  • the socket port is a two-hole, three-hole or five-hole socket port.
  • the charging port, the AC/DC converter, the charging controller and the power supply controller are integrated in a charging module, which is detachably mounted in the socket.
  • the term “comprises” and its variants are to be read as open-ended terms that mean “comprises, but is not limited to.”
  • the term “based on” is to be read as “based at least in part on.”
  • the term “one example embodiment” is to be read as “at least one embodiment.”
  • the term “another embodiment” is to be read as “at least another embodiment.”
  • Terms “first,” “second” and others can denote different or identical objects. The following text may also contain other explicit or implicit definitions. Unless indicated otherwise, the meaning of the terms is consistent through the context of the present disclosure.
  • FIG. 1 illustrates a block diagram of a socket 100 according to an embodiment of the present disclosure.
  • the socket 100 may be, for example, a panel mounted socket or a floor mounted socket, which has a housing 170 to encapsulate various electrical components inside, so as to prevent the risk of electric shock.
  • the socket 100 comprises a charging port 110, such as a USB port, which can be connected to a device to be charged 200 (such as a smart phone or a tablet computer) and provides a DC voltage to charge the device to be charged 200.
  • a charging port 110 such as a USB port
  • a device to be charged 200 such as a smart phone or a tablet computer
  • the socket 100 further comprises a conventional socket port 150, which can be connected to an electrical appliance 300 to provide an AC working voltage required by the electrical appliance 300.
  • the socket port 150 may be a two-hole socket port, a three-hole socket port, or a five-hole socket port.
  • the socket 100 further comprises an AC/DC converter 120, a charging controller 130, and a power supply controller 140.
  • the charging controller 130 may determine the expected charging voltage and the expected charging current supported by the device to be charged 200, and transmit corresponding information to the power supply controller 140.
  • the power supply controller 140 adjusts the output voltage and output current of the AC/DC converter 120 based on the determined expected charging voltage and expected charging current.
  • the output voltage and output current of the AC/DC converter 120 can be accurately adjusted according to the charging performance supported by the device to be charged 200, so as to provide the best charging scheme for devices 200 with different specifications, especially the device to be charged 200 that supports fast charging function.
  • the charging duration can be shortened and the charging efficiency can be improved.
  • the expected charging voltage and the expected charging current can change dynamically. For example, when the battery power of the device to be charged 200 is low, such as less than 30% of the battery power, the device to be charged can be set to a higher expected charging current, so as to more quickly charge the battery.
  • the expected charging current is dynamically adjusted.
  • the battery power of the device to be charged 200 reaches a high level, such as higher than 90% of the battery power, the device to be charged can be set to a lower expected charging current, so as to protect the battery from overcharging.
  • the AC/DC converter 120 is connected to the power supply controller 140 and/or the charging controller 130 to provide working voltage.
  • circuit design can be simplified, because there is no need to design additional working voltage supply circuits for the power supply controller 140 and the charging controller 130.
  • the charging port 110, the AC/DC converter 120, the charging controller 130 and the power supply controller 140 are integrated in a charging module 160, which is detachably mounted in the socket 100.
  • the electrical components in the socket 100 can be modularly designed, so that the DC part for charging mobile devices and the AC part for powering electrical appliances are separated from each other.
  • the component for charging the mobile device has a fault, it can be easily disassembled, so that only the corresponding charging module 160 needs to be replaced.
  • FIG. 2 illustrates a block diagram of a charging controller 130 of a socket 100 according to an embodiment of the present disclosure.
  • the charging controller 130 comprises an identification unit 131, a storage unit 132 and an ascertaining unit 133.
  • the identification unit 131 When the device to be charged 200 is connected to the charging port 110, the identification unit 131 first identifies the charging protocol supported by the device to be charged 200.
  • the charging protocol may be the currently mature quick charging protocol, such as Quick Charge (QC), USB Power Delivery Specification (PD), VOOC Flash Charge, Super Charge Protocol (SCP) and Fast Charging Protocol (FCP), etc.
  • expected charging voltages and expected charging currents specified by a plurality of charging protocols are stored. For example, the voltage 5V, 9V, 15V or 20V and the current 1.5A, 2A, 3A or 5A supported by the USB Power Delivery Specification protocol.
  • the ascertaining unit 133 acquires the corresponding expected charging voltage and expected charging current from the storage unit 132 based on the charging protocol supported by the device to be charged 200 and identified by the identifying unit 131, and sends the result to the power supply controller 140.
  • the power supply controller 140 adjusts the output voltage and output current of the AC/DC converter 120 based on the received information about the expected charging voltage and the expected charging current. For example, when the power controller 140 is in PWM mode, the duty cycle can be adjusted according to the expected charging voltage, so as to adjust the output voltage of the AC/DC converter 120 to the expected voltage value.
  • the charging controller 130 further comprises a monitoring unit 134.
  • the monitoring unit 134 stops providing the output voltage and output current to the device to be charged 200.
  • the predetermined threshold may be set to 10% - 30% of the expected charging current of the device to be charged 200, or other appropriate values. In this way, the device to be charged 200 can be effectively protected from overcurrent. At the same time, it can also prevent the socket from overheating and damage due to excessive charging current.
  • the monitoring unit 134 may further be configured to limit the output current of the AC/DC converter 120 to the rated current, when the identified expected charging current of the device to be charged 200 exceeds the rated current of the AC/DC converter 120. In this way, the AC/DC converter 120 can be effectively operated within a safe current range and prevented from damage due to overcurrent or overheating.
  • FIG. 3 illustrates a block diagram of an AC/DC converter 120 and a power supply controller of a socket 100 according to an embodiment of the present disclosure.
  • the AC/DC converter (120) is designed to comprise a transformer 121, a power switch 122, an input rectifier filter 123 and an output rectifier filter 124.
  • the input rectifier filter 123 first rectifies and filters the AC input signal to eliminate the inrush current and surge voltage in the AC input signal, so as to protect the electrical equipment in the socket from damage.
  • the power switch 122 is coupled to the primary side of the transformer 121 and is controlled by the power supply controller 140. In a control mode such as PWM mode, the power supply controller 140 intermittently turns on and off the power switch 122 based on the expected charging voltage of the device to be charged 200 and the AC input voltage of the socket 100.
  • the transformer 121 is for example an isolation transformer.
  • the duty cycle of the voltage on the primary side of the transformer 121 can be adjusted, so that a voltage value that matches the expected charging voltage of the device to be charged 200 is induced on the secondary side of the transformer 121.
  • the output rectification filter 124 further rectifies and filters the voltage induced on the secondary side of the transformer 121, so as to provide a substantially constant DC charging voltage to the device to be charged 200.
  • the power supply controller 140 may comprise a switch control unit 141.
  • the switch control unit 141 is connected to the charging controller 130 and turns on (or turns off) the power switch 122 based on the expected charging voltage of the device to be charged 200 identified by the charging controller 130 to adjust the output voltage.
  • the switch control unit 141 may operate in PWM mode to adjust the on/off duration of the power switch 122 based on the ratio of the expected charging voltage to the AC input of the AC/DC converter 120 (for example 220V of the mains power supply), so that the output voltage of the AC/DC converter 120 is adjusted to the expected voltage value.
  • the power supply controller 140 may further comprise a temperature sensing unit 142.
  • the temperature sensing unit 142 detects the temperature of the AC/DC converter 120 through a corresponding sensor. When the temperature of the AC/DC converter 120 exceeds a predetermined temperature threshold, the temperature sensing unit 142 sends corresponding information to the switch control unit 141.
  • the switch control unit 141 turns off the power switch 122 according to the information, so that the AC/DC converter 120 stops providing output voltage and output current. In this way, over-temperature protection can be provided for the AC/DC converter 120 to prevent the AC/DC converter 120 from damage due to excessive temperature.
  • each functional unit of the charging controller 130 and the power supply controller 140 of the embodiment of the present disclosure can be implemented in various circuit forms or other hardware forms having the function, and is not limited herein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
EP19891737.9A 2018-12-05 2019-09-06 Prise Pending EP3893358A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201822033974.6U CN209200742U (zh) 2018-12-05 2018-12-05 插座
PCT/CN2019/104705 WO2020114028A1 (fr) 2018-12-05 2019-09-06 Prise

Publications (2)

Publication Number Publication Date
EP3893358A1 true EP3893358A1 (fr) 2021-10-13
EP3893358A4 EP3893358A4 (fr) 2023-02-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19891737.9A Pending EP3893358A4 (fr) 2018-12-05 2019-09-06 Prise

Country Status (4)

Country Link
EP (1) EP3893358A4 (fr)
CN (1) CN209200742U (fr)
SG (1) SG11202106008SA (fr)
WO (1) WO2020114028A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209200742U (zh) * 2018-12-05 2019-08-02 施耐德电气（澳大利亚）有限公司 插座
CN111064280A (zh) * 2019-12-16 2020-04-24 嵊州市法佳电器有限公司 一种通过pwm波调节的无线插座

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101563820A (zh) * 2006-11-09 2009-10-21 威尔摩得公司 入墙安装或墙面安装的固定配电系统的dc电源插座
CN202737275U (zh) * 2012-03-23 2013-02-13 青勇 一种墙壁usb电源插座
TWI536706B (zh) * 2014-03-11 2016-06-01 登騰電子股份有限公司 智慧型電源轉接器及其供電控制方法
CN104934819B (zh) * 2015-05-19 2017-03-22 北京创羿智能科技有限公司 多功能插座
CN206712482U (zh) * 2016-10-25 2017-12-05 Tcl-罗格朗国际电工（惠州）有限公司 Usb充电插座
CN106487064A (zh) * 2016-11-11 2017-03-08 广州极飞科技有限公司 电池充电方法、充电器及充电电池
TWI614966B (zh) * 2017-01-03 2018-02-11 飛宏科技股份有限公司 定電流模式之充電方法
US9887571B1 (en) * 2017-06-23 2018-02-06 Dell Products L.P. Combining power from an internal battery and an external power storage adapter
CN107294161A (zh) * 2017-06-30 2017-10-24 联想(北京)有限公司 一种充电装置及充电方法
CN209200742U (zh) * 2018-12-05 2019-08-02 施耐德电气（澳大利亚）有限公司 插座

Also Published As

Publication number Publication date
WO2020114028A1 (fr) 2020-06-11
CN209200742U (zh) 2019-08-02
EP3893358A4 (fr) 2023-02-08
SG11202106008SA (en) 2021-07-29

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